Solar light project

redneck joe

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Mar 18, 2009
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10,272
You may be aware of my thread on my back patio project.

we don't often stay up much after dark, we are 4am risers typically. Last night however we were up to almost midnight and spent a lot of time by the pool and on the deck laughing a lot. And eating chips and salsa.

we have solar lights on our fence posts around the pool so plenty of ambient light to move about and the pool light adds to that. With the new work we've done however the stairs on the deck are less well lit so while sitting out there contemplating the origins of the universe and whether spelling dog backwards means anything..............what if I took some nav lights, used a small solar panel and a battery of some sort and put on the first step of the deck. Red right return kinda thing.



https://www.iboats.com/shop/seachoic...-bi-color.html .


https://smile.amazon.com/Sunnytech-1...ds=Solar+panel

Could use diff style light and colored led

Maybe a dawn to dusk light? I



So my question(s) are

LED lights i think I could swap out on any style of light avail?
Battery type? I hate electricity stuff. 12 v 1.5 v 6 v whaaaat? I have room under deck for a car battery if needed.
Wire to use? Thinking I might need 20 ft of so is there any voltage loss enoght to affect performance?
Size of solar panel to use? I could put on a stair riser or locate remotely....see above on loss of power.
Anything else a neophyte dork is missing?
 
Last edited:

Grub54891

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Led lights don't use much power, In boats, the wire runs are very long, usually undersized wiring to begin with, but they worked for the regular bulbs, so led's will be fine. I'd use 16 gauge just because. Most any led is 12 volt, even the 120 volt ones have a transformer built in to the bulb, it cuts the power down to 12 volts. At least the ones I've took apart do.
Not sure about charging with the solar panel, The lights draw very little so it may work fine.
My small solar lights on the house have been doing fine for 2 years on AAA battery's, they charge during the day. A car battery will power them for quite some time.
 

redneck joe

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to keep the lights off during the day, and charging the battery, will a light sensor thingie shut it off? just wire inline on one of the wires form the battery?

the best place for the solar panel and possibly battery is about 40 feet from where i'd have the lights;no worries about voltage drop in that much distance? or i'd have the solar panel 40 feet away then the battery about 2 feet form the lights.
 

Grub54891

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Mine shut off with their own sensor during the day. They use 2 aa rechargeable batteries, wich makes them 3 volts each. I guess they may blow out with a 12 volt source. However, a 120 volt one sometimes can be converted to 12 volts, by removing the transformer. I've done it before. Add a light sensor in the circuit and it should work in theory. Or just make sure you buy 12 volt lights.
 

redneck joe

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Yeah dingbat easier for sure but i'd have to replace the bulbs to get my red and green color.
 

redneck joe

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10,272
ok heres what i'm thinking

these lights. Reported to be .04amp draw.

https://smile.amazon.com/dp/B075FVTQ15/ref=sspa_dk_detail_4?psc=1&pd_rd_i=B075FVTQ15& amp;pf_rd_m=ATVPDKIKX0DER&pf_rd_p=171383575172 6239774&pf_rd_r=KMK1SGCND90Y6FVGFSS5&pd_rd _wg=hm0ua&pf_rd_s=desktop-dp-sims&pf_rd_t=40701&pd_rd_w=jW425&pf_rd _i=desktop-dp-sims&pd_rd_r=372f6f7b-7a5e-11e8-af7d-5bbedff3150c


this battery. If i'm reading things right as i try to lean about this, at 7 amp it will be fine for the 8 lights i want to do

https://smile.amazon.com/ExpertPowe...ef=pd_bxgy_263_img_2?_encoding=UTF8&pd_rd_i=B 003S1RQ2S&pd_rd_r=a8f0ab44-7a5a-11e8-a3b3-55739bf65a5f&pd_rd_w=Bnl7S&pd_rd_wg=pBv4N& amp;pf_rd_i=desktop-dp-sims&pf_rd_m=ATVPDKIKX0DER&pf_rd_p=3914568 618330124508&pf_rd_r=39TMWKT96WNS2Y0ARTWG& pf_rd_s=desktop-dp-sims&pf_rd_t=40701&psc=1&refRID=39TMWK T96WNS2Y0ARTWG


this charger. it will get good sun on the step rider if I put there, about half the day.

https://smile.amazon.com/gp/product/B003LZ4IK4/ref=ask_ql_qh_dp_hza



then dusk to dawn sensor. Difficult to find a low voltage one.

https://www.amazon.com/HIGHROCK-Pho...3&sr=8-2&keywords=12+volt+dusk+to+dawn+sensor


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